diff options
| author | Jeremy Linton <jeremy.linton@arm.com> | 2024-12-20 12:12:36 -0600 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2025-01-08 13:58:49 +0000 |
| commit | a1edec22457e6fabc5450a6eea7fdc0e1b6dab31 (patch) | |
| tree | 282f2490664f0fe82bc9c8c88d5b181f6a80bcc5 /arch/arm64/include/asm | |
| parent | fac04efc5c793dccbd07e2d59af9f90b7fc0dca4 (diff) | |
arm64: rsi: Add automatic arm-cca-guest module loading
The TSM module provides guest identification and attestation when a
guest runs in CCA realm mode. By creating a dummy platform device,
let's ensure the module is automatically loaded. The udev daemon loads
the TSM module after it receives a device addition event. Once that
happens, it can be used earlier in the boot process to decrypt the
rootfs.
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20241220181236.172060-2-jeremy.linton@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm')
| -rw-r--r-- | arch/arm64/include/asm/rsi.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/rsi.h b/arch/arm64/include/asm/rsi.h index 188cbb9b23f5..b42aeac05340 100644 --- a/arch/arm64/include/asm/rsi.h +++ b/arch/arm64/include/asm/rsi.h @@ -10,6 +10,8 @@ #include <linux/jump_label.h> #include <asm/rsi_cmds.h> +#define RSI_PDEV_NAME "arm-cca-dev" + DECLARE_STATIC_KEY_FALSE(rsi_present); void __init arm64_rsi_init(void); |